Gas pressure regulator



FIG. 1 is a perspective view of a gas pressure regulator showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is top view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for a gas pressure regulator, as shown. 